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CVE-2019-9791
AST
CriticalConfirmedExploit available

The type inference system allows the compilation of functions that can cause type confusions between arbitrary objects when compiled throug…

CVSS
9.8
Critical
EPSS
0.20
p97
Published
2019-01-01
Updated
2019-01-01
Description

The type inference system allows the compilation of functions that can cause type confusions between arbitrary objects when compiled through the IonMonkey just-in-time (JIT) compiler and when the constructor function is entered through on-stack replacement (OSR). This allows for possible arbitrary reading and writing of objects during an exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

Tags · CWE
Pre-auth
CWE-843
Affected products
FirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefoxFirefox
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Timeline
2019-01-01
Published
2019-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: N
Network (N)
Attack Complexity
AC: L
Low (L)
Privileges Required
PR: N
None (N)
User Interaction
UI: N
None (N)
Scope
S: U
Unchanged (U)
Confidentiality Impact
C: H
High (H)
Integrity Impact
I: H
High (H)
Availability Impact
A: H
High (H)
Exploit indicators
EPSS
0.198 · p97
Known exploited (KEV)
No
Known exploits — Сканер-ВС
46613
exploitdb · https://www.exploit-db.com/exploits/46613
Enterprise
CVE-2019-9791
github-poc · https://github.com/Sp0pielar/CVE-2019-9791
Enterprise
Affected products
ProductVendorStatus
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
firefoxTracked
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Source databases
AST
DEB
CVE
RED
UBU
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